java – 如何在Android手机上访问相机？

Using the camera

How-To Program The Google Android Camera To Take Pictures

Take Picture from Camera Emulator

camera

首先编辑你的AndroidManifest.xml,添加摄像机权限：

<uses-permission android:name=”android.permission.CAMERA”/>

相机服务必须打开和关闭：

Camera camera = Camera.open();
 //Do things with the camera
camera.release();

您可以设置相机设置,例如：

Camera.Parameters parameters = camera.getParameters();
parameters.setPictureFormat(PixelFormat.JPEG); 
camera.setParameters(parameters);

拍照：

private void takePicture() {
  camera.takePicture(shutterCallBACk,rawCallBACk,jpegCallBACk); 
}

ShutterCallBACk shutterCallBACk = new ShutterCallBACk() {
  public void onShutter() {
    // TODO Do something when the shutter closes.
  }
};

PictureCallBACk rawCallBACk = new PictureCallBACk() {
  public void onPictureTaken(byte[] _data,Camera _camera) {
    // TODO Do something with the image RAW data.
  }
};

PictureCallBACk jpegCallBACk = new PictureCallBACk() {
  public void onPictureTaken(byte[] _data,Camera _camera) {
    // TODO Do something with the image JPEG data.
  }
};

不要忘了将相机布局添加到主布局xml中.